MBSC6900 Hardware Structure 1.0

8/14/2019 MBSC6900 Hardware Structure 1.0

1/131

1

MBSC6900 Hardware Structure

JasonM


2/131

Reference

BSC6900 GSM Product Descriptions

BSC6900 UMTS Product Descriptions

BSC6900 GU Product Descriptions


3/131

Main Content

1. BSC6900 Introduction

2. BSC6900 Hardware Structure

3. BSC6900 Logical Structure

4. Board Layout

5. Service Processing Subsystem

6. Switching Subsystem

7. Clock Synchronization Subsystem8. Operation & Maintenance Subsystem

9. GSM Interface Subsystem

10. UMTS Interface Subsystem

11. Power Supply Subsystem

12. Environment Monitoring Subsystem13. Cable and Cable Connections

14. GSM Signal Flow

15. UMTS Signal Flow


4/131

1. BSC6900 Introductions

1. Location of BSC6900 in GSM & UMTS Network2. GSM Interfaces

3. BSC6900 Interfaces

4. BSC6900 Co-Cabinet5. BSC6900 Co-O&M

6. BSC6900 Co-TRM

7. BSC6900 Co-RRM

8. Typical Capacity of BSC6900


5/131

Location of BSC6900 in GSM & UMTS Network


6/131

UMTS Interfaces

The interfaces between the BSC6900 GSM and each NE in the UMTSnetwork are as follows:

Uu Interface: the interface between UE and UTRAN

Iub Interface: the interface between the NodeB and RNC.

Iur Interface: the interface between the RNC and RNC.

Iu-CS Interface: the interface between the MSC and MGW.

Iu-PS Interface: the interface between the RNC and SGSN

Iu-BC Interface: the interface between the RNC and CBC


7/131

GSM Interfaces

The interfaces between the BSC6900 GSM and each NE in theGSM network are as follows:

Um interface : the interface between MS and BSS

Abis Interface: the interface between the BTS and BSC

A Interface: the interface between the BSC and MSC or MGW

Ater Interface: the interface between the BSC and Transcoder

Gb Interface: the Interface between the BSC and SGSN


8/131

> Smooth evolution from BSC to RNC with software upgrade

> Latest Software Version for BSC6900 is indicated as:

GBSS12.0 (GSM) / RAN12.0 (UMTS)

Above shows GU Mode. However BSC6900 supports two other mode which

are GO (GSM Only ) and UO (UMTS Only)

Software

upgrade

BSC6900 Co-Cabinet

BSC

BSC

RNC

RNC

RNC

BSC

GSM&UMTS cabinet GSM&UMTS co-cabinet

RNC

RNC

BSC


9/131

BSC6900 Software Versions for VHA

V900R012C01SPH508

V =Version

R = ReleaseC= Customer

SP= Service Pack

H= HotC= Cold


10/131

NetworkOptimization

FaultManagement

PMManagement

ConfigurationManagement

Unified OAM toolkits: Easier 2G/3G trouble shooting

Unified GENEX : Unified 2G/3G network planning,

performance evaluation and performance trouble shooting

Unified CME : Simultaneous 2G/3G data configuration,

correctness and efficiency guaranteed

BSC6900 Co-O&M


11/131

pTRAU

pTRAU

IPUNI-BTS

UNI-BTSUNI-BSCCo-transmission

UDP

IP

/

PPP

IP SW

Router

FP

FP

FP

3G

2G

3G

2G

pTRAU

pTRAU

F

P

F

P

F

P

UDP

IP

/

PPP

IP SW

Router

pTRAU

Interfaceboard

5-10% Gain

0.2 0.1 0.05 0.03 0.02 0.01 0.005 0.002 0.001

GOS

TrafficGain(%)

10

9

8

7

6

5

4

3

2

1

0 With unified transport resource management,bandwidth can be shared by UMTS&GSM.

Without Co-trans Co-trans

UMTS / GSM UMTS + GSMTrafficrejection

Multiplexing

Gain

BSC6900 Co-TRM


12/131

UMTS

GSM

Cs service PS service

Service direction on UMTS/GSM

Heavy

Load

Heavy

Load

Heavy

Load

Heavy

Load

UMTS

GSM

Load control between UMTS/GSM

Load control by

inter-RAT HO

3G/2G cell load consideration make traffic

load spread in UMTS&GSM evenly, network

usage efficiency improved

3G/2G cell load consideration make it more accurate for

the service direction, better

performance achieved

BSC6900 Co-RRM


13/131

Typical Capacity for BSC6900 GSM

BSC6900 GSM only

Item 1MPS+1TCS 1MPS+1EPS+2TCS 1MPS+2EPS+2TCS

Number ofcabinets

2 2 2

BHCA(K) 1750 3500 5250

Traffic volume

Erl

6500 13000 19500

Number of TRXs 1024 2048 3072

Number of active

PDCHsMCS-9

4096 8192 12288

Typical configuration specifications of the BSC6900 GSM(BM/TC separated

and Abis over non-IP R11 board)


14/131

Typical Capacity for BSC6900 UMTS

Specs. BSC6900 V9R12 BSC6810V2R11

Max. traffic 80400 Erlang 61200 Erlang

Max. PS throughput 8040Mbps 3910Mbpsdownlink+uplink

Max. No. of NodeB 3060 1,700

Max. No. of cell 5100 5,100

BHCA 2380k 2000K

BASED on 2 Cabinet


15/131

2. BSC6900 Hardware Structure

1. BSC6900 Cabinet2. BSC6900 Cabinet for GSM Only

3. BSC6900 Cabinet for UMTS Only

4. BSC6900 Subrack

5. DIP Switch of the Subrack

6. Power Distribution Box


16/131

BSC6900 Cabinet The BSC6900 uses the Huawei N68E-22 cabinet and the Huawei N68-21-N

cabinet. The two models of cabinets have the same appearance.N68E-22 is divided

into a single-door cabinet or a double-door cabinet.

Item Specification

Height of theavailable space

46U

Weight Empty cabinet100 kg

Cabinet in full

configuration300 kg

Input voltage

range

-40 V to -57 V


17/131

BSC6900 Cabinet GSM Only

The BSC6900 cabinet is classified into main

processing rack (MPR), extended processingrack (EPR), and transcoder rack (TCR) only for

GSM.

For GSM the BSC6900 the MPR, EPR and TCR

can be configured as BM/TC combined , BM/TC

separated or A over IP configuration.

BM/TC Combined BM/TC Separated


18/131

BSC6900 Cabinet UMTS Only

The BSC6900 cabinet is classified into main

processing rack (MPR) and extended processing

rack (EPR

Maximum there are only two cabinets. One for

MPR and another for EPR

For UMTS Cabinet there will be only one MPSand five EPS subracks


19/131

BSC6900 Subrack The BSC6900 GSM subrack has a standard width of 19 inches. The height of each

subrack is 12 U. The boards are installed on the front and rear sides of the

backplane, which is positioned in the center of the subrack. A subrack provides 28 slots. The slots on the front of the subrack are numbered

from 0 to 13, and those on the rear are numbered from 14 to 27.

MPS: Main Processing Subrack

EPS: Extended Processing Subrack

TCS: Transcoder Subrack


20/131

BSC6900 Subrack

1 Fan box 2 Mounting ear 3 Guide rail

4 Front cabletrough

5 Boards 6 Groundingscrew

7 DC power

input port

8 Port for the

monitoring signal

cable of the power

distribution box

9 Cover plate

of the DIP

switch

Front ViewRear View

Classification of BSC6900 GSM subracks

Item Index

Height of the subrack 12U

Weight of the subrack Empty: 25kg;

Full configuration57kg

Consumption l MPS subrack: 1000W

l EPS subrack: 1000W

l TCS subrack:1000W


21/131

DIP Switch of the Subrack

Subrack

number

Subrack code

1 2 3 4 5 6 7 8

Subrack 0 ON ON ON ON ON ON ON OFF

Subrack 1 OFF ON ON ON ON OFF ON OFF

Subrack 2 ON OFF ON ON ON OFF ON OFF

Subrack 3 OFF OFF ON ON ON ON ON OFF

Subrack 4 ON ON OFF ON ON OFF ON OFF

Subrack 5 OFF ON OFF ON ON ON ON OFF


22/131

DIP Switch of the Subrack


23/131

3. BSC6900 Logical Structure

1. Logical Structure for GSM Mode2. Logical Structure for UMTS Mode


24/131

Logical Structure for GSM mode

2. ServiceProcessing

Subsystem

1. Interface Subsystem

3. Clock

Subsystem

4. O&M

Subsystem

5. SwitchingSubsystem


25/131

Logical Structure for UMTS Mode

1. Interface Subsystem

2. ServiceProcessing

Subsystem

3. Clock

Subsystem

4. O&M

Subsystem

5. Switching

Subsystem


26/131

4. BSC6900 Board Layout

1. Logical Structure for GSM Mode2. Logical Structure for UMTS Mode


27/131

MPS for UMTS

14 15 16 17 18 19 20 21 22 23 24 25 26 27

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

O

M

U

a

O

M

U

a

I

N

T

I

N

T

I

N

T

I

N

T

Rear

Backplane

S

P

U

S

P

U

S

P

U

S

P

U

S

P

U

S

P

U

S

c

u

a

S

c

u

a

S

P

U

/

DP

U

S

P

U

/

DP

U

S

P

U

/

DP

U

S

P

U

/

DP

U

G

C

U

/

G

C

G

G

C

U

/

G

C

G

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


28/131

EPS for UMTS

14 15 16 17 18 19 20 21 22 23 24 25 26 27

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

D

P

U

/

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

Rear

Backplane

S

P

U

S

P

U

S

P

U

S

P

U

S

P

U

S

P

U

S

c

u

a

S

c

u

a

S

P

U

/

D

P

U

S

P

U

/

D

P

U

S

P

U

/

D

P

U

S

P

U

/

D

P

U

D

P

U

D

P

U

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


29/131

MPS for GSM (BM/TC Separated)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

O

M

U

a

O

M

U

a

I

N

T

I

N

T

Rear

Backplane

S

P

U

S

P

U

S

P

U

S

P

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

G

C

U

a

G

C

U

a

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


30/131

EPS for GSM (BM/TC Separated)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

Rear

Backplane

SP

U

SP

U

SP

U

SP

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

D

P

U

d

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


31/131

MPS for GSM (BM/TC Combined)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

O

M

U

a

O

M

U

a

I

N

T

I

N

T

I

N

T

I

N

T

Rear

Backplane

SP

U

SP

U

SP

U

SP

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

D

P

U

c

D

P

U

c

G

C

U

a

G

C

U

a

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


32/131

EPS for GSM (BM/TC Combined)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

D

P

U

c

D

P

U

c

Rear

Backplane

SP

U

SP

U

SP

U

SP

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

D

P

U

d

D

P

U

c

D

P

U

c

D

P

U

c

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


33/131

MPS for GSM (A over IP)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

O

M

U

a

O

M

U

a

I

N

T

I

N

T

Rear

Backplane

SP

U

SP

U

SP

U

SP

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

D

P

U

c

D

P

U

c

G

C

U

a

G

C

U

a

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


34/131

EPS for GSM (A over IP)

14 15 16 17 18 19 20 21 22 23 24 25 26 27

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

I

N

T

Rear

Backplane

SP

U

SP

U

SP

U

SP

U

T

N

U

a

T

N

U

a

S

c

u

a

S

c

u

a

D

P

U

d

D

P

U

d

D

P

U

d

D

P

U

c

D

P

U

c

D

P

U

c

Front

0 1 2 3 4 5 6 7 8 9 10 11 12 13


35/131

5. Service Processing Subsystem

1. Functions of Service Processing Subsystem

2. Service Processing Boards

3. XPU/SPU

4. DPUc

5. DPUd

6. DPUb/e


36/131

Functions of Service Processing Subsytem

Functions

User data transfer

Radio channel ciphering and deciphering

System admission control

Data integrity protection

Mobility management

Cell broadcast service control

Data volume reporting

Radio access management

CS service processing

PS service processing

Radio resource management and control

System information and user message tracing


37/131

Service Processing Boards

Signaling Processing BoardXPUa/b board ( for GSM Only )

SPUa/b board ( for GSM & UMTS)

Note:The postfix of signaling processing unit a means it has 4 logic subsystem, and

the postfix of b means it has 8 logic subsystem

Data Processing Board

DPUa/b/e ( for UMTS)DPUc/d(for GSM)


38/131

XPU/SPU

Loaded with different software, the XPUa board is functionally divided

into main control XPUa board and non-main control XPUa board.

XPUa

PARC

RUN

ALM

ACT

10/100/1000BASE-

T

ACTLINK

0

1

2

3

The 0 subsystem of main control XPU/SPU board is

MPU, used to manage the user panel and signaling

plane resources within the subrack and process the

signaling.

The subsystem of non-main control XPU/SPU board

is CPU, used to process the signaling.

For GSM Only mode, one MPU for the system is

enough. If the system upgrade to GU mode, one

MPU should for one subrack.

Main control

XPUa

Non-Main control

XPUa


39/131

DPUc

Function

DPUc (Data Processing Unit) process CS services for GSM Service and

perform the voice coding and decoding function. It works as subrack

system pool mode.

Provides the speech format conversion and data forwarding functions

when configured in BM subrack.

Provides the Tandem Free Operation (TFO) function

Provides the voice enhancement function

Detects voice faults automatically

DPUa

PARC

RUN

ALM

ACT

Item Specification

Dimensions 366.7 mm 220 mm

Power supply Two -48 V DC working in active/standby mode. The backplane of the subrack is

responsible for the power supply.

Power consumption 49.40 W

Weight 1.26 kg

Operating temperature (long-term) 0Cto 45C

Operating temperature (short-term) -5Cto +55C

Relative humidity (long-term) 5% to 85%

Relative humidity (short-term) 5% to 95%

Processing capability Supporting 960 TCH/Fs;

Supporting 3,840 IWF flow numbers


40/131

DPUd Function

The DPUd (Data Processing Unit) process PS services for GSM Service.It can be installed in slots 811 in MPS and 8-27 in EPSit processes

the packet services for the BSC.

Each DPUd supports 1024 activated PDCHs at the same time, and all

the PDCHs support MSC-9 coding.

Packet links processing function.

PS fault self-detection.

DPUa

PARC

RUN

ALM

ACT

Item Specification

Dimensions 366.7 mm 220 mm

Power supply Two inputs of -48 V DC working in active/standby mode. The

backplane of the subrack is responsible for the power supply.

Power consumption 49.40 W

Weight 1.26 kg

Operating temperature (long-term) 0Cto 45C

Operating temperature (short-term) -5Cto +55C

Relative humidity (long-term) 5% to 85%

Relative humidity (short-term) 5% to 95%

Processing capability Processing the PS services on up to 1,024 simultaneously

active PDCHs where signals are coded in MCS9


41/131

DPUa

PARC

RUN

ALM

ACT

DPUb / DPUe

Processing frame protocols.

Selecting and distributing data Performing the functions involved in the GTP-U, IUUP,

PDCP, RLC, MAC, and FP protocols.

Performing encryption, decryption, and paging.

Processing internal communication protocols between

the SPU board and the DPU board.

Providing the Multimedia Broadcast and Multicast

Service (MBMS) processed on the RLC and MAC layers.

Specifications

DPUb Supports115Mbit/s data throughputdownlinkuplinkCS voice1800 erlangCS data900elang150cell

DPUe Supports335Mbit/s data throughputdownlinkuplinkCS voice3350erlangCS data1675elang300cell


42/131

6. Switching Subsystem

1. Functions of Switching Subsystem

2. Switching Boards

3. TNUa

4. SCUa


43/131

Functions of Switching Subsystem Functions

Provides intra-subrack Medium Access Control (MAC) switching Provides intra-subrack Time Division Multiplexing (TDM) switching

Distributes clock signals to the service processing boards

Provides inter-subrack switching

Provides switching channels for traffic data

Provides OM channels

Hardware Involved

TDM switchingTNUa board

MAC switchingSCUa board


44/131

Switching Boards

TDM Switching Board

TNUa Board ( for GSM Only)

TNUa stands for TDM Switching Network Unit

MAC Switching Board SCUa ( for GSM & UMTS)

SCUa stands for Switching and Control Unit


45/131

TNUa

Port Function

Matching

connector

TDM05 TDM high-speed serial port, used to connect the TNUaSbetween subracks

DB14

GTNU

PARC

RUN

ALM

ACT

TN

M5

TNM4

TNM0

T

NM1

TNM2

TNM3

The TNUa is the TDM switching unit in the BSC6900.

The active and standby TNUa are inserted in slot 4 and slot 5. The

TNUa board performs the TDM switching function, which is the TDM

switching center of the system.

The TNUa has the following functions:

Providing 128 K

128 K TDM switching

Allocating TDM network resources, establishing, and releasing radio

links


46/131

SCUa

Port Function Matching

EHT09 10M/100M/1000M Ethernet ports, used to connect subracks RJ45

EHT101110M/100M/1000M Ethernet ports, used to connect GBAM (Only the

main subrack is connected with the GBAM)

RJ45

COM Debugging port RJ45

CLKINClock source port, used to receive the 8 kHz clock signals from the

panel of the GGCU

RJ45

TESTOUT Clock test signal port, used to output clock test signals SMB connector

The SCUa is the switching control unit in the BSC6900.

The active and standby SCUa are inserted in slot 6 and 7. The SCUa

board provides maintenance management of the subrack and GE

switching platform for the subrack.

The SCUa has the following functions:

Performing maintenance management of the subrack

Providing a GE platform for the subrack

Providing clock information for the other boards in the same

subrack except the GCUa

SCUa

PARC

RUN

ALM

ACT

COM

TESTOUT

CL

KIN

ACT

LINK

1 0

/ 1 0 0

/ 1 0 0 0 B A

S E

- T

RESET

ACTLINK

8

9

0

1

2

3

4

5

6

7

11

10

ACTLINK


47/131

7. Clock Subsystem

1. List of Clock Source

2. Clock Synchronization Boards

3. Clock Synchronization Structure

4. GCUa/ GCGa

Li t f Cl k S


48/131

List of Clock Source Clock Source

Bits clock

Line clock

GPS

Reference Clock for the MPS or EPS

The reference clocks are provided by the GCUa. The reference clocks generate 8kHz clock

signals through the GCUa.

MPS: The clock signals are sent to the SCUa in the MPSa subrack through the backplane.

Then, the clock signals are sent to other boards in the same subrack.

EPS: The clock signals are sent to the SCUa board in the EPSa subrack through the clock

cable. Then, the signals are sent to other boards through the backplane.

Reference Clock for the TCS

Each TCS extracts line clock from the A interface. The line clock is processed through Ainterface panel and then generates 8 KHz clock signals.

The clock signals are sent to the SCUa in the subrack through the backplane. Then the clock

signals are sent to other boards in the same subrack.


49/131

Clock Synchronization Boards

Clock Synchronization Boards

GCUa stands for General Clock Unit

GCGa stands for General Clock Unit with GPS Card


50/131

Clock Synchronization Subsystem Structure

High-speed backplane channel

R

I

N

T

R

I

N

T

S

C

U

a

R

I

N

T

R

I

N

T

S

C

U

a

S

C

U

a

GCUa/GCGa

Clock module

RSS

8kHz

To BTS/NodeB

To BTS/NodeBTo BTS/NodeB

RBS RBS

19.44MHz, 32.768MHz, 8KHz

19.44MHz, 32.768MHz,

8KHz

19.44MHz, 32.768MHz,

8KHz

8kHz

Clock cable

CN BITS GPS

8kHz

GCU / GCG


51/131

Port

nameFunction

Port type

ATN-IN Port for the GPS antenna. SMA female

CLKOU

T0~9

Ports for outputting synchronization timing signals. The ten

ports are used to output 8 kHz timing signals and 1PPS

timing signals

RJ45

COM0 Reserved RJ45

COM1 Port for 422-level 8kHz timing signals RJ45

TESTO

UT

Port for testing timing signal output. This port is used to

output the internal timing signals of the board

SMB male

TESTINPort for testing timing signal input. This port is used to

input 2 MHz signals.

SMB male

CLKIN0Port for inputting BITS timing signals and line timing

signals.

SMB male

CLKIN1Port for inputting BITS timing signals and line timing

signals.

SMB male

GCUa/ GCGa


52/131

8. O&M Subsystem

1. O&M Subsystem Structure

2. O&M Board

3. OMUa

4. External Default IP5. Internal Default IP

O&M S b S


53/131

M2000

S

C

U

a

S

C

U

a

LANSWITCH

OM

U

a

OM

U

a

SC

U

a

SC

U

a

WEB LMTExternal

network

MPS

Internal

network

EPS

Internet cable

Serial cable

O&M Subsystem Structure


54/131

O&M Board

O&M Board

OMUa stands for Operation & Maintenance Board

There are two types one is OMUa and the other is OMUb

OMU sometime is also referred as BAM (Background Administrative Module)

For GSM only, this is known as GBAM

OMUa


55/131

OMUa

The OMUa board works as a bridge for the communication between the

WebLMT and the other boards in the BSC6900.

Function

Performing the configuration management, performance management,

fault management, security management, and loading management

functions for the system

To control the communication between the LMT/M2000 and the SCUaboard of the BSC6900

(1) Captive screw (2) Shielding finger (3) Ejector lever (4) LED (RUN)

(5) LED (ALM) (6) LED (ACT) (7) Button (RESET) (8) Button

(SHUTDOWN)

(9) USB port (10) Ethernet port (ETH0) (11) Ethernet port (ETH1) (12) Ethernet port

(ETH2)

(13) COM port (14) VGA port (15) LED (HD) (16) LED(OFFLINE)

(17) Hard disk (18) Screw for fixing the hard disk


56/131

OMUaIndex Index of the OMUa Board Index of the OMUb Board

Size 366.7 mm x 220 mm 366.7 mm x 220 mmPower supply Two routes of -48 V DC in redundancy

backup mode (provided by the backplane of

the subrack)

Two routes of -48 V DC in

redundancy backup mode

(provided by the backplane of

the subrack)

Power consumption 120 W 90 W

Weight 4.0 kg 3.5 kg

Hard disk capacity 146 GB x 2 (RAID 1) 146 GB x 2 (RAID 1)Memory capacity 2 GB 2 GB

Temperature required when

working for a long time

0C - +45C 0C - +45C

Temperature required when

working for a short time

-5C - +55C -5C - +55C

Relative humidity required when

working for a long time

5%-85% 5%-85%

Relative humidity required when

working for a short time

5%-95% 5%-95%


57/131

External Default IP AddressExternal IP Address Ethernet Adapter Default IP

External fixed IP address(Active OMUa)

ETH0

172.121.139.201 (255.255.255.0)ETH1

External fixed IP address

(Standby OMUa)

ETH0

172.121.139.202 (255.255.255.0)

ETH1

External virtual IP address Switch/HUB/Router 172.121.139.200 ( 255.255.255.0)

Debugging IP address

(Active OMUa)

ETH2192.168.6.50 (255.255.255.0)

Debugging IP address

(Standby OMUa)

ETH2192.168.6.60 (255.255.255.0)


58/131

Internal Default IP Address

Internal IP Address Ethernet Adapter Default IP

Internal fixed IP address

(Active OMUa)

ETH4-SCU780.168.3.50 (255.0.0.0)

ETH5-SCU6

Internal fixed IP address

(Standby OMUa)

ETH4-SCU780.168.3.60 (255.0.0.0)

ETH5-SCU6

Internal virtual IP address Internal adapter 80.168.3.40 (255.0.0.0)

Backup Channel IP address

(Active OMUa)ETH3

192.168.3.50 (255.255.255.0)

Backup Channel IP address

(Standby OMUa)ETH3

192.168.3.60 (255.255.255.0)


59/131

9. GSM Interface Board

1. EIUa2. OIUa

3. POUc

4. PEUa5. FG2a

6. FG2c

7. GOUa

8. GOUc


60/131

GSM Interface Board

Board Logical Function Board NameTransmission

Category

EIUa

Abis_TDM

32-port E1/T1 circuit Interface Unit REV:a

TDM

Ater_TDM

Pb_TDM

A_TDM

OIUa

Abis_TDM

1-port channelized Optical STM-1

Interface Unit REV:a

Ater_TDM

Pb_TDM

A_TDM

POUcTDM 4-port IP over channelized Optical STM-

1/OC-3 interface Unit REV:cTDM / IP / HDLC

IP

PEUa

FR32-port Packet over E1/T1/J1 interface

Unit REV:aFR/HDLC/IPHDLC

IP

FG2aGbIP (GSM BSC Gb IP interface) 8-port FE or 2-port electronic GE interface

unit REV:a

IP

IP

FG2c IP12-port FE or 4-port electronic GE

interface unit REV:c

GOUa IP2-port packet over GE Optical interface

Unit REV:a

GOUc IP4-port packet over GE Optical interface

Unit REV:c


61/131

EIUa


62/131


63/131

OIUa


64/131

OIUa

Item Specification

Abis TRX 384

A CIC(64K) 1,920

Ater CIC(16K) 7,168

Pb CIC(16K) 7,168


65/131

POUc


66/131

POUc

Item Specification Trans mode

Abis TRX 512

TDM

A CIC(64K) 3,906

Ater CIC(16K) 7,168

Pb CIC(16K) 7,168

GbMaximum payload throughput (physical

layer)504 Mbit/s


Abis TRX 2,048

IP

A CIC(64K) 23,040

Ater CIC(16K)

23,040 (The TC subrack

supports only 13,000 CICs.)


Abis TRX 2,048 HDLC


67/131

PEUa


68/131

PEUa

Item Specification

Abis TRX 384


layer) 64 Mbit/s


69/131

FG2a


70/131

FG2a

Item Specification

Abis TRX 384

A CIC(64K) 6,144


layer)128 Mbit/s


71/131

FG2c


72/131

FG2c

Item Specification

Abis TRX 2,048

A CIC(64K) 23,040

Gb Maximum payload throughput (physical layer) 1,024 Mbit/s


73/131

GOUa


74/131

GOUa

Item Specification

Abis TRX 384

A CIC(64K) 6,144


75/131

GOUc


76/131

GOUc

Item Specification

Abis TRX 2,048

A CIC(64K) 23,040


layer)1,024 Mbit/s


77/131

10. UMTS Interface Board

1. AEUa2. AOUa

3. AOUc

4. UOIa

5. UOIc

6. FG2a

7. FG2c

8. GOUc

9. GOUa

10. PEUa11. POUa

12. POUc


78/131

UMTS Interface

Board Logical Function Board NameTransmission

Category

AEUa ATM 32-port ATM over E1/T1/J1 interface Unit REV:a

ATMAOUa ATM2-port ATM over channelized Optical STM-1/OC-3

interface Unit REV:a

AOUc ATM4-port ATM over channelized Optical STM-1/OC-3

interface Unit REV:c

UOIc ATM/IP8-port ATM/Packet over Unchannelized Optical STM-

1/OC-3c Interface unit REV:c

ATM / IP

UOIa

ATM4-port ATM/Packet over Unchannelized Optical STM-

1/OC-3c Interface unit REV:aIP

FG2a IP 8-port FE or 2-port electronic GE interface unit REV:a

IP

FG2c IP12-port FE or 4-port electronic GE interface unit

REV:c

GOUa IP 2-port packet over GE Optical interface Unit REV:a

GOUc IP 4-port packet over GE Optical interface Unit REV:c

PEUa IP 32-port Packet over E1/T1/J1 interface Unit REV:a

POUa IP2-port IP over channelized Optical STM-1/OC-3

interface Unit REV:a

POUc IP4-port IP over channelized Optical STM-1/OC-3

interface Unit REV:c

AEUa


79/131

AEUa

The AEUa board is an interface board and supports ATM over E1/T1/J1.

the AEUa board functions:

Providing 32 channels of ATM over E1/T1

Providing 32 IMA groups or 32 UNIs. One IMA group contains at most 32 IMA links.

Providing the fractional ATM and the fractional IMA functions.

Supporting timeslot cross-connection.

Providing AAL2 switching function.

Providing intra-board ATM switching function.

Obtaining timing signals from the Iu interface and exporting timing signals to the

GCUa/GCGa board.

Exporting timing signals to the NodeB.

Port Function Connector type

RX Optical port, used to transmit and receive optical signals. TX refers to the

transmitting optical port, and RX refers to the receiving optical port.

LC/PC

TX

2M0

2M1

Output ports for clock signals. These ports are used to transmit the 2 MHz line

clock signals to the GCUa/GCGa board. The clock signals are extracted from

upper-level devices and serve as the clock sources of the BSC6900 system.

SMB male

connector

AEUa


80/131

AEUa

Processing capability specifications for the AEUa board

Notes:

The processing capability specifications refer to the maximum processing

capability that the board can achieve when it processes associated services

uniquely.

In the table, the CS data service refers to the Video Phone (VP) service at 64Kbit/s.

The other boards follow these 2 rules as well.

Type Specification

Iub CS voice service 2,800 Erlang

CS data service 680 Erlang

Maximum payload throughput (UL) 45 Mbit/s

Maximum payload throughput (DL) 45 Mbit/s

AOUa /AOUc


81/131

AOUa /AOUcThe AOUa Provides 2 optical interfaces over channelized optical STM-1/OC-3 ports

AOUc board Provides 4 optical interfaces over channelized optical STM-1/OC-3

ports.The AOUa/AOUc board functions:

transmission based on ATM protocols.

Supporting ATM over E1/T1 over SDH or SONET.

Providing the IMA and the UNI functions.

Providing AAL2 switching function.

Providing intra-board ATM switching function.

Obtaining clock signals from the Iu interface and exporting timing signals to the GCUa/GCGa

board.





LC/PC

TX

2M0

2M1




SMB male

connector

AOUa/AOUc


82/131

AOUa/AOUcProcessing capability specifications for the AOUa board

Type Specification


CS data service 3,000 Erlang



Type Specification

Iub/Iur/Iu

cs

CS voice service 18000 Erlang


Maximum payload throughput

(UL)

300Mbit/s

Maximum payload throughput

(DL)

300Mbit/s

Iu-PS Maximum payload throughput

DL+UL)

700Mbit/s

Processing capability specifications for the AOUc board

UOIa / UOIc


83/131

UOIa / UOIc

The UOIc Provides 8 channels over unchannelized STM-1/OC-3c optical ports .

The UOIa Provides 4 channels over unchannelized STM-1/OC-3c optical ports .

Supports ATM/IP over SDH/SONET

Supports the Iu-CS, Iu-PS, Iu-BC, Iur, and Iub interfaces

Receives clock signals from the Iu interface and transmits clock signals to

the GCUa/GCGa board Transmits clock signals to the NodeB




LC/PC

TX

2M0

2M1




SMB male

connector

UOIa/UOIc


84/131

UOIa/UOIc

Processing capability specifications for the UOIa (ATM) board

Type Specification





Iur CS voice service 9,000 Erlang




Iu-CS CS voice service 9,000 Erlang

CS data service 3,000 ErlangIu-PS Maximum payload throughput (UL) 150 Mbit/s


UOIa/UOIc


85/131

UOIa/UOIc

Processing capability specifications for the UOIa (IP) board

Type Specification





Iur CS voice service 6,000 Erlang




Iu-CS CS voice service 6,000 ErlangCS data service 1,500 Erlang

Iu-PS Maximum payload throughput (UL) 250 Mbit/s


UOIa/UOIc


86/131

UOIa/UOIc

Processing capability specifications for the UOIc board

Type Specification

Iub CS voice service 18000 elang

CS data service 9000elang

Maximum payload throughput (UL) 800Mbit/s

Maximum payload throughput (DL) 800Mbit/s

Iur CS voice service 18000elang

CS data service 9000elang



Iu-CS CS voice service 18000elangCS data service 9000elang

Iu-PS Maximum payload throughput (UL) 900Mbit/s


FG2a/FG2c


87/131

/The FG2a board Providing 8 FE ports or 2 GE electrical ports

the FG2c board Providing 12 FE ports or 4 GE electrical ports

FG2c Specification

Iub/Iur CS voice service 18,000 Erlang


Maximum payload throughput (UL+DL) 2600 Mbit/s



Iu-PS Maximum payload throughput (UL+DL) 3200 Mbit/s

FG2a Specification







GOUa/ GOUc


88/131

GOUa/ GOUcThe GOUa board Providing 2 GE optical ports

The GOUc board Provides 4 GE optical ports

GOUc Specification







GOUa Specification







PEUa


89/131

PEUa

The PEUa board is an interface board and supports IP over E1/T1/J1.

the PEUa board functions:

Providing 32 channels of IP over PPP/MLPPP over E1/T1 Providing 64 PPP links or 32 MLPPP groups, each MLPPP group containing 8 MLPPP links

Providing the fractional IP function

Supporting timeslot cross-connection

Obtaining clock signals from the Iu interface and exporting timing signals to the GCUa/GCGa board.


Type Specification








LC/PC

TX

2M0

2M1




SMB male

connector

POUa/POUc


90/131

POUa/POUc

POUa supports 2 optical interfaces over channelized optical STM-1/OC-3

POUc supports 4 optical interfaces over channelized optical STM-1/OC-3 Other functions:

Supporting IP over E1/T1 over SDH/SONET.

Providing Multi-Link PPP.

Obtaining clock signals from the Iu interface and exporting timing signals to the

GCUa/GCGa board.





LC/PC

TX

2M0

2M1




SMB male

connector

POUa/POUc


91/131

POUa/POUc

Processing capability specifications for the POUa board

Type Specification





Type Specification

Iub CS voice service 18000 erlang

CS data service 6000 erlang



Processing capability specifications for the POUc board


92/131

11. Power Supply Subsystem

Power supply Subsystem


93/131

The power supply subsystem of the BSC6900 adopts the dual-circuit redundancy and point-by-point monitoring solution. It

consists of the power lead-in part and the power distribution part. The power supply subsystem of the BSC6900 consists of the -48 V

DC power system, DC power distribution frame (PDF), and DCpower distribution box (PDB) at the top of the cabinet


94/131



95/131



96/131

12. Environment Monitoring

Subsystem

Environment MonitoringSubsystem


97/131

Power Monitoring The power monitoring involves monitoring the power

subsystem in real time, reporting the operating status of thepower supply, and generating alarms when faults occur

Environment MonitoringSubsystem


98/131

Environment Monitoring The environment monitoring involves monitoring the

temperature, humidity, operating voltage, door status, waterdamage, smoke, and infrared. The environment monitoringfunction is performed by the Environment Monitor Units(EMUs).

13 Cables and Cable Connections


99/131

13. Cables and Cable Connections

1. Main Cables

2. Y-Shaped E1/T1 Cable

3. Y-Shaped RNC Clock Signal Cable

4. Optical Cable

5. Network Cables

6. Monitoring Signal Cable of Power Distribution Box7. RNC Alarm Box Signal Cable

8. Interconnection between TNUa

9. Interconnection between SCUa

10. Interconnection in Basic Module and Transcoder11. Clock Synchronization Interconnection

Main Cables


100/131

Main Cables

TrunkCables

75coaxialcableandY-shaped75coaxialcable 120twistedpaircableandY-shaped120twistedpaircable

NetworkCables

Straightthroughnetworkcable is for OMUa and other boards

Crossover network is between SCUa and SCUa

OpticalFibers

LC/PC-SC/PCsingle-modeopticalcable

LC/PC-FC/PCsingle-modeopticalcable

Pleasechooserightopticalfibersbasedonactualnetworksituation

Y-Shaped E1/T1 cable


101/131

p /

(1) DB44 connector (2) Main label (Identifying the code, version, and manufacturerinformation of the cable)

(3) Label (Identifying a

coaxial cable)

(4) Metal case of the DB44 connector

E1/T1cable isusedtoconnectE1/T1/J1port

TheY-shaped75-ohmcoaxialcable/120-ohmcoaxialcableusedintheRNChastwoDB44connectorsatoneendandhasastructureof2x8cores.Thatis,the75-ohmcoaxial

cableiscomposedoftwocables,eachofwhichcontainseightmicrocoaxialcables.The16

microcoaxialcablesformeightE1RX/TXlinks.

Y-shaped RNC Clock Signal Cable


102/131

Y shaped RNC Clock Signal Cable

(1) Label (Identifying a pair of twisted pair cables) (2) RJ45 connector

TheRJ45connectoratoneendoftheY-shapedRNCclocksignalcableis

connectedtoportCLKINontheSCUaboard.ThetwoRJ45connectorsat

theotherendofthesignalcableareconnectedtoportsCLKOUTontheactiveandstandbyGCUa/GCGaboardswhicharelocatedintheRSSsubrack.

(1)(2)

(1)

(1)

Optical Cables


103/131

3

Optical Cables

(1) LC/PC Connector (2)SC/PC Connector (3) FC/PC Connector

LC/PC-SC/PCsingle-modeopticalcableandLC/PC-FC/PCsingle-mode

opticalcable

ItisusedtoconnecttheotherNEs

Network Cables


104/131

Straight through cable

X1end Wire color X2end wire color

X1-1 White andorange

X2-1 White and orange

X1-2 orange X2-2 orange

X1-3 White and green X2-3 White and green

X1-4 Blue X2-4 Blue

X1-5 White and blue X2-5 White and blue

X1-6 Green X2-6 Green

X1-7 White and brown X2-7 White and brown

X1-8 brown X2-8 brown

TheRNCstraight-throughcablecanbe

usedtoconnecttheOMUaboardto

otherdevices

Crossovernetworkcablecanusedto

connecttheSCUboard

crossover cable

X1end Wire color X2 end Wire color

X1-1 White and orange X2-1 White and green

X1-2 Orange X2-2 Green

X1-3 White and green X2-3 White and orange

X1-4 Blue X2-4 Blue

X1-5 White and blue X2-5 White and blue

X1-6 Green X2-6 orange

X1-7 White and brown X2-7 White and brown

X1-8 Brown X2-8 Brown

Monitoring Signal Cable of RNC Power

Di t ib ti B


105/131

Distribution Box

The monitoring signal cable of the RNC power distribution box has a DB9

connector at one end, and has a DB15 connector at the other end

X1: DB9 connector X2: DB15 connector SHELL: Metal case


106/131

RNC Alarm Box Signal Cable

The RNC alarm box signal cable is used to transmit alarm information to the

alarm box to display audible and visible warning.

X1: RJ45 connector X2: DB9 connector

Interconnection between TNUa


107/131

TNUaActiveBoard

Board

LVDS TDM path of backplane

Inter-TNUa Cable

TNUaStandby

TNUaActive Board

BoardTNUaStandby

Intra-Subrack: Other boards in the subrack connect with TNUa (Active/Standby)

through LVDS (Low Voltage Differential Signal) high speed serial ports of

backplane.

Inter-Subrack: TDM units of every subrack fully interconnected with each other

through TNUa crossover cables.

In full intra-subrack

interconnection, 2 cables

support 8K bandwidth.

Interconnection between TNUa


108/131

1

0TNUa TNUa

TNUa TNUa

2TNUa TNUa

> Using Crossover Cable

Interconnection in Basic Module and Transcoder


109/131

A interface

Pb interface Abis interfaceAter interface

Subracks of BSC6000 compose an interconnection switching network

through cascade.

TCS

TCS TCSTC

EPS

MPS EPSBM

SCUa Star interconnection

TNUa Full interconnection

Interconnection between SCUa


110/131

Active/standby SCUa boards: HiG interconnection; 30G bandwidth.

Intra-subrack : The SCUa board provides 48G GE switching capability through

backplane. Inter-subrack : The SCUa boards are connected in star topology through intercross

cable using the GE ports on SCUa.

Switchin

g and

control

unit

Other board

Other board

Other board

Other board

Other board

Other board

Switching and

control

unit

Switchin

g and

control

unit

RSS

RBS

RBS

High-speed

backplane channelNetwork cable

Interconnection between SCUa


111/131

SCUa in MPS subrack

GE07 interconnect with EPS, open the port by MML command.

GE8/9 interconnect with main TCS

GE10/11 interconnect with GBAM

SCUa in EPS subrack

GE01 interconnect with MPS

Clock Synchronization Interconnection


112/131

y The connection of the GCUa of the main subrack

and the extension subrack is shown:

The active and standby GCUa output 10-way signal

channel respectively. A signal channel of an active

GCUa and that of a standby GCUa are integrated

through the Y-shaped cable.

Any of component including GCUa, Y-shaped cable,

and SCUa is faulty, the system clock still can worknormally.

14. GSM Signal Flow


113/131

14. GSM Signal Flow

1. GSM CS Signal Flow

2. GSM PS Signal Flow

3. Signaling Flow on the A Interface

4. Signaling Flow on the Abis Interface

5. Signaling Flow on the Gb Interface6. O&M Signal Flow

GSM CS Signal Flow


114/131

GSM CS Signal Flow

Abis over TDM+A over TDM

GSM CS Signal Flow


115/131

GSM CS Signal Flow Abis over HDLC/IP+A over TDM


116/131

GSM PS Signal Flow (Inner-PCU)


117/131

Abis over TDM

Abis over HDLC/IP

Signaling Flow on the A Interface


118/131

Abis over TDM+A over TDM

the signaling processing board XPUa processes the signaling

according to the MTP3, SCCP, and BSSAP protocols.

A Over IP

The A interface board processes the MTP2 protocol

Signaling Flow on the Abis Interface


119/131

Abis over TDM/IP/HDLC

Signaling Flow on the Gb Interface


120/131

Gb Over IP

the signaling processing board processes the signaling

according to the NS and BSSGP protocols. Then, the signalingis transmitted to the Gb interface board through the SCUa

board.

The Gb interface board processes the signaling according to

the IP or FR protocol. Then, the signaling is transmitted to the

SGSN over the Gb interface.

OM Signal Flow


121/131



122/131


1. BSC6900 System Signal Flows

2. Control Message Flow on the Uu Interface

3. Control Message Flow on the Iub Interface

4. Control Message Flow on the Iu/Iur Interfaces

5. Data Flow Between Iub and Iu-CS/Iu-PS6. Data Flow from Iu-BC to Iub

BSC6900 System Signal Flows


123/131

y g

BSC6900 system signal flows including:

Control plane message flows

Uu interface message flow

Iub interfaces message flows

Iur/Iu interfaces message flows

User plane data flows UMTS service data flow

CBS service data flow

Control Message Flow on the Uu Interface


124/131

Page 124

Intra-RNC Control Message Flow on the Uu Interface

MPS

Control Message Flow on the Uu Interface


125/131

g

Inter-RNC Control Message Flow on the Uu Interface

Control Message Flow on the Iub Interface


126/131

g

MPS


127/131

Data Flow Between Iub and Iu-CS/Iu-PS


128/131

Intra-RNC Data Flow Between Iub and Iu-CS/Iu-PS

MPS


129/131

Data Flow from Iu-BC to Iub


130/131

MPS


131/131

Thank You

Documents

MBSC6900 Hardware Structure 1.0